Gourmet native and commercial mushroom grain spawn ready to be mixed into substrate for fruiting.

New to grain spawn? Our full guide covers spawn rates, choosing a substrate, and step-by-step instructions: >> How to Use Mushroom Grain Spawn - A Beginner's Guide (NZ)

Our spawn will also come with printed instructions.

All spawn is a blend of locally sourced NZ-Grown wheat and is only shipped once we're sure it's contaminant free and 100% colonised. Spawn is ready to use as soon as it arrives.

Select from our extensive range of A-Grade spawn: (By the KG) Click the links below for specific growth details of each species, such as best growing style, preferred substrate, fruiting method, incubation time etc

Receiving Spawn:

Upon receiving your spawn it is ideal to take it out of the box within 7 days, stand the top of the bag up so the filter patch is exposed and the spawn can breath. Keep in a room temperature (10-25°C) place out of direct sunlight until used.

All spawn and culture work is done in-house in our own laboratory.

All spawn cultures we offer have been sourced with permission to on-sell. Sporeshift Mushrooms holds a MPI permit to import approved species such as Pleurotus Ostreatus.

Customers who buy Mushroom Grain Spawn often also purchase:

>> Sterilised Grain for growing mushrooms

>> Dowel (Plug) Spawn - for mushrooms logs (8 Species Options)

>> Mushroom Liquid Cultures - (7 Species Options)

>> Mushroom Cultures on Agar (8 Species Options)

Beginners / first-time growers please start with our >> Easy 5 Step Oyster Grow kit (This introductory mushroom kit will set you up with a good understanding of what spawn is and how to use it - detailed instructions are included). Please note the 5 step kit method of growing will ONLY work for Oyster mushrooms (Grey, Pink, Pearl, Blue, Warm White, Trumpet, Tan & Native Velvet Oysters,).

Always identify any mushroom before consuming!

Mushroom Grain Spawn - 16 Varieties (By the kg) | SporeShift

Name: Mushroom Grain Spawn - 16 Varieties (By the kg) | SporeShift
Price: 25 NZD
Availability: InStock

$25.00

Species

KG's

Quantity

If you see any colouring other than white in your spawn bag please send us a photo - before opening - as this could be contamination and we will replace it. It is very rare we get contamination, but on the odd occasion, it can happen. We will always replace any unopened contaminated spawn. If you do need to email us please send your order number so we can find your order in our system -- this will help speed up the process!
This Agreement is entered into by and between Sporeshift Mushrooms ("Seller") and the purchaser ("Buyer") upon the purchase of any mushroom cultures from Sporeshift Mushrooms.

1. Description of Product

The mushroom cultures provided by Sporeshift Mushrooms are intended for personal, educational, research, or hobbyist use only. These cultures may include, grow kits, grain spawn, spores, agar plates, liquid culture, mycelium, or other biological materials for cultivation purposes.

2. Permitted Use

Buyer agrees to use the mushroom cultures solely for non-commercial purposes, such as personal cultivation, microscopic study, or educational experiments.

3. Restrictions

No Commercial Use or Resale: The mushroom cultures are not sold or provided for commercial production, distribution, resale, or any profit-generating activities without the express written permission of Sporeshift Mushrooms. This includes, but is not limited to, selling cultivated mushrooms, cultures, or derivatives thereof.

If you wish to use our cultures for commercial production please contact us through the >>contact us form on the website.
What is mushroom grain spawn?

Grain spawn is hydrated and sterilised grain (we use locally sourced NZ wheat) that's been fully colonised with mushroom mycelium... basically the living "seed" you use to start a mushroom grow. You mix it into a larger batch of substrate, the mycelium spreads through it, and then it fruits mushrooms. Sporeshift spawn arrives 100% colonised and ready to use the day it lands.

How do I use grain spawn?

You mix it into a fruiting substrate (like pasteurised straw or a sterilised sawdust block), let it colonise, then trigger it to fruit. It's easier than it sounds, the best way to learn is to just give it a go!

How much grain spawn do I need?

Use spawn at a rate of 3-20% of your substrate weight. So 1kg of spawn will happily colonise anywhere from 5 to 30kg of substrate depending on your ratio. More spawn means faster colonisation and less contamination risk. For beginners id recommend the 10-20% range to reduce risk of contamination. As you get more experienced experiment with less spawn.

How much does mushroom grain spawn cost?

Our grain spawn starts at $25 for 1kg, and the per-kg price drops the more you buy, down to as low as $16.60/kg. Every variety is the same price, so pick whatever species you fancy. Free shipping kicks in over $100.

Sporeshift supplies commercial spawn at lower rates for business growers with set weekly or fortnightly offers - if this interests you please get in contact to discuss.

How long until I get mushrooms?

Depends on the species, but oysters are quick... often 9-14 days to colonise, then another couple of weeks to fruit. So from mixing your spawn in to picking your first mushrooms is often just 3-4 weeks. Each species page lists exact times.

How do I store grain spawn?

Fresh is always best, so try to use it soon after it arrives. If you need to hold it, pop it in the fridge and keep the filter patch exposed so it can breathe. How long it keeps depends on the species, the printed instruction sheet that comes with the spawn covers this too. Spawn can be stored for up to 4 months in the fridge.

Is this a grow kit?

No, spawn is the starting point, not a ready-to-go kit. You'll need to mix it into a substrate to actually grow mushrooms. If you'd rather start with everything included, grab our >> Easy 5 Step Oyster Grow Kit instead... it comes with spawn and substrate and teaches you the whole process hands-on.